Plum Orchard is a 22-room Georgian Revival mansion in the middle of the western shore of Cumberland Island, surrounded by live oaks draped with Spanish moss. Built in 1898 by the Carnegie family, it is the best-preserved of the island's great houses and gives a vivid picture of how Gilded Age wealth chose to spend its leisure.
The National Park Service leads tours of the mansion on occasional weekends — check the park website for the current schedule and reserve well in advance, as the tours are popular. The house is not continuously open; when tours are not running, you can walk the exterior and grounds. The setting — a grand white mansion in a clearing in semi-wilderness, heard only by the sounds of birds and whatever breeze is coming off the marsh — is something that photographs don't quite capture.